physical law

基本解释

The physical law that the volume of a fixed mass of gas held at a constant pressure varies directly with the absolute temperature.
物理定律，在不变压力下，一定质量的气体的体积与绝对温度的变化成正比。
Next take the typical three-inertia Electrical position servo system as the research object, according to the system physical law set up a dynamic model of servo system.
其次以典型三惯量机电位置伺服系统为研究对象，根据系统的物理定律建立了伺服系统的动力学模型。
But if someone were to find a counter-example to a physical "law", it would go back to being a hypothesis, and we'd have to repeat more experiments to see if we need to tweak our "law".
如果有人找到一次的例外，这定律就要被放回假设。就要再做实验，看是否应修改目前的“定律”。
joycewang08141976.spaces.live.com

Congress passed the law to bar discrimination against people with physical or mental disabilities.
Now here is the key point: Painful emotions are as much as part of human nature as the law of gravity is part of physical nature.
这是关键点：,人类本性的痛苦情绪,一如物理世界的万有引力定律。
哈佛公开课 - 幸福课课程节选

How important is it to have a physical office for a law firm?
FORBES: What Is A Typical Expense To Earnings Ratio For A Large Law Firm In A Major City?
As silicon chips continue to shrink they will eventually reach their physical limits and Moore's law will hit a brick wall.
FORBES: Five Technologies Set to Change The Decade

物理定律
Movement of any substance subject to certain natural routine . Usual partial differential equations are mathematical model describing movement of relation between some physical value which is determined by corresponding physical law.
任何物质的运动都受到一定的自然规律的制约，我们常见的偏微分方程就是作为描写这些物质运动的数学模型，它们从数量形式上刻划了由相应的物理定律所确定的某些物理量之间的联系。
物理学
物理定律